How does the verb vouch contrast with its synonyms?
Some common synonyms of vouch are attest, certify, and witness. While all these words mean "to testify to the truth or genuineness of something," vouch applies to one who testifies as a competent authority or a reliable person.
willing to vouch for her integrity
When can attest be used instead of vouch?
While in some cases nearly identical to vouch, attest applies to oral or written testimony usually from experts or witnesses.
attested to the authenticity of the document
When is it sensible to use certify instead of vouch?
The words certify and vouch are synonyms, but do differ in nuance. Specifically, certify usually applies to a written statement, especially one carrying a signature or seal.
certified that the candidate had met all requirements
When would witness be a good substitute for vouch?
The words witness and vouch can be used in similar contexts, but witness applies to the subscribing of one's own name to a document as evidence of its genuineness.
witnessed the signing of the will
Example Sentences
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Recent Examples of vouchMany makeup lovers can vouch that this is an issue across the board.—Jessica Fields, Essence, 20 Dec. 2024 During that time, McMahon vouched to expand Pell Grant access for short-term workforce training programs.—Kiara Alfonseca, ABC News, 20 Nov. 2024 Chandhok, the prosecution’s star witness — who, like Caple, received immunity for his testimony — vouched earlier this week that Becker had leaked him the report.—Grace Hase, The Mercury News, 16 Nov. 2024 Porter continues to stand out Michael Porter Jr. showed up to training camp in excellent physical shape, teammates and coaches have vouched.—Bennett Durando, The Denver Post, 13 Oct. 2024 See All Example Sentences for vouch
Once LCAs are certified, typically within seven to 10 days, employers can move forward with filing H-1B petitions with USCIS, a critical step for companies relying on highly skilled workers in sectors such as technology, health care and research.
—
Billal Rahman,
MSNBC Newsweek,
4 Nov. 2025
The device has been integrated into Tiangong's systems and certified for up to 500 uses.
Black residents had to register with the county clerk within two years of arriving in Ohio, pay a fee of 12 1/2 cents, and obtain a court order attesting to their being free.
—
Equal Justice Initiative,
USA Today,
6 Nov. 2025
Shoppers attest to using it for long trips, such as one person’s three-week vacation or another’s two-week trip to Europe.
But this worsening food crisis now on a collision course with the issue Democrats are holding firm to fix in this shutdown, looming, skyrocketing health care costs for some 20 million Americans insured through the Affordable Care Act.
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ABC News,
ABC News,
2 Nov. 2025
The jewels stolen from the Louvre, however, were not privately insured.
Podnieks himself witnessed his cameraman taking a fatal hit while the team were recording events on the streets of Riga in 1992.
—
Will Tizard,
Variety,
2 Nov. 2025
After witnessing their mother succumb to her injuries, the affidavit stated that the children said their father ordered them to clean up the blood and never tell another person what happened to their mother.
For example, as part of its agreement with OpenAI, Nvidia has reportedly discussed guaranteeing loans the startup would use to build its own data centers—a move that could leave the chipmaker on the hook for billions in debt if OpenAI can’t repay.
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Sharon Goldman,
Fortune,
5 Nov. 2025
That wasn't guaranteed at the beginning of this effort a few months ago.
The reason the Justice Department and the FBI have procedures is to guaranty fairness, and not just fairness but also the appearance of fairness, so that people can have confidence in institution.
—
Fox News,
Fox News,
17 June 2018
Rodriguez said ViaGen cautions prospective clients that while the company can guaranty a clone that’s genetically identical to the parent, personalities are a complicated mix of nature and nurture.
—
Mary Carole McCauley,
baltimoresun.com,
2 May 2018
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